CIC31J121NE

Chip Ferrite Bead Overview

The Samsung Electro-Mechanics CIC31J121NE is a single-line ferrite bead designed for power line noise suppression. It features a 1206 (3216 metric) surface-mount package with dimensions of 3.20mm x 1.60mm x 1.30mm maximum height. The component provides an impedance of 120 Ohms at 100 MHz and supports a rated current of 4A. Its DC resistance is maximized at 30 milliohms, ensuring low insertion loss in high-current applications. It operates within a temperature range of -55°C to 125°C and complies with RoHS3 standards.

Chip Ferrite Bead Feature Summary

• Provides effective electromagnetic interference filtering for power lines through high-impedance characteristics at target frequencies.
• Supports high-current operation up to 4A with minimal voltage drop due to low DC resistance.
• Designed for reliable performance across wide industrial temperature ranges.

Chip Ferrite Bead Applications

• Power supply input filtering
• Noise suppression on high-current data lines
• EMI reduction in portable electronic devices

Chip Ferrite Bead Procurement Notes

Verify the lifecycle status carefully as this part may be discontinued or subject to end-of-life notices. Confirm that the 1206 footprint and 4A current rating align with your design requirements. Ensure compatibility with RoHS3 regulations if required by your market. Check for valid replacement options from Fair-Rite or other manufacturers if availability is constrained.

Chip Ferrite Bead Selection Notes

Select this component when a 1206 package size is mandated and a 4A current capacity is necessary. The 120 Ohm impedance at 100 MHz suits general-purpose EMI suppression. Consider the 30 milliohm DCR limit for efficiency-sensitive designs. Verify thermal management capabilities given the 125°C operating limit.

Chip Ferrite Bead Part Context

This ferrite bead belongs to the CIC31 series from Samsung Electro-Mechanics, a manufacturer specializing in passive components. The company produces MLCCs, inductors, and filters for mobile and automotive electronics. This specific part addresses the need for compact, high-current noise suppression in modern circuit boards.

Chip Ferrite Bead Replacement Considerations

Fair-Rite Products Corp. part number 2512061217Y5 is documented as a parameter-equivalent substitute. Verify mechanical fit and electrical specifications before adoption.

Chip Ferrite Bead FAQ

What is the maximum operating temperature for the CIC31J121NE?

The component is rated for operation between -55°C and 125°C.

Does this ferrite bead support high-current applications?

Yes, it has a rated current capacity of 4A.